Home / 12,786.85-19,156.52-6,948.37

Finding the Fourth Proportional to 12,786.85, 19,156.52 and 6,948.37

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Solution

The fourth proportional to 12,786.85, 19,156.52 and 6,948.37 is: 10,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.85 : 19,156.52 = 6,948.37 : x
  2. Step 2: Convert to fraction form
    12,786.85/19,156.52 = 6,948.37/x
  3. Step 3: Cross multiply
    12,786.85x = 19,156.52 × 6,948.37
  4. Step 4: Simplify right side
    12,786.85x = 133,106,554.13
  5. Step 5: Solve for x
    x = 133,106,554.13/12,786.85
  6. Step 6: Final answer
    x = 10,409.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.